Socket Description; Figure 1. 754-Pin Μpga Socket Used For The Amd Athlon™ 64 Processor - AMD Athlon 64 Thermal Design Manual

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Preliminary Information

26633 Rev. 3.03 September 2003

AMD Athlon™ 64 and AMD Opteron™ Processors

Thermal Design Guide

2.2 Socket Description

Figure 1 shows a three-dimensional view of the Socket 754, which is a socket based on surface

mount technology. The pin array is 29x29 on a 1.27 mm pitch with a 9x9 depopulation in the

center. In addition, three pins are removed from the A1 corner of the package, and a single pin is

removed from the other three corners. The electrical and mechanical connection to the

motherboard is made with a small solder ball at each socket contact. This type of connection does

not allow for a large mass, like a heatsink, to be attached to the socket. Therefore, independent

support structures are required for mounting the heatsink.

Figure 1. 754-pin µPGA Socket Used for the AMD Athlon™ 64 Processor

AMD Athlon™ 64 and AMD Opteron™ Processors Thermal Requirements Chapter 2

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Athlon 64 fx Opteron